[Retracted] Application of Microcontroller-Based Multipath Servos in Industrial Robot Control Systems

Table 2

Five preparation methods of nanomaterials.

Preparation method	Main process	Features
Evaporation coalescence method	Decomposition of raw materials and rearrangement of the atoms and molecules	Small diameter of nanomaterials
Sedimentation method	Solution state mixed precipitation, prepared after drying	Higher purity of nanomaterials
Spray method	Atomizing raw material solution to break up nanomaterials	Uniform material distribution and fine grain
Hydrothermal method	Hydrolysis of raw materials under high temperature and pressure	Guaranteed balance
Gas-phase reaction method	Synthesis of ultrafine particles through chemical experiments	Low energy consumption, low cost, and high efficiency